Antenna for radio receiving sets



Low W L C POIRIER ANTENNA FOR RADIO RECEIVING SETS Filed Feb 14 1927 i Patented Oct 2, i

- the apparatus;

- we LOUIS dromraa, or MERRILL, WISCONSIN.

' immune ron RADIO, RE E VING sn'rs.

imam tea man '14; 1927; Serial No. 168,040.

, This invention relates to antenna for radio receiving sets; I I

, Ob'ects of this invention are to provide a novel form ofantenna whichis non-direc tional, which will protect the insulatedsupport under all weather conditions against inadvertent short circuiting or grounding, and which has such a construction that the guy wires may act not only in the capacity of guy wires, but also may be used to supplement the antenna and to form a portion'therewith,1-f desired. a

Further objects are to provide a novel form of antenna which, has a lowfwind resistance. which has sulficient cross sectional area, and whichhas a low electrical resistance] An embodiment of the invention isshown in the accompanying drawings in which:-

Figure l is-aside elevationshowing the antenna in position; 1

Figure 2 is a sectional View through the antenna; i

Figure 3 1s a view'from the underside of Figure l is a fragmentary sectional .view on g the line H of Figure 3. v

Referring to the drawings, it will be seen that the antenna comprises asheet metal cone 1 which is provided with a metal supporter Preferably, the spider and the cone are each formed of copper, to havethe minimum resistance. The arms of thespider are IlV- eted, as indicated at 3, to the cone at spaced I points to secure the maximum strength. If

desired, one of the arms maybe provided with a binding. post 4 for the lead-in wire The spider is provided with a reenforcing upper metal plate 5, as shownmost clearly in Figure 4, through which the attaching headed bolts 6 pass. These bolts jpass through insulating sleeves 7, such sleeves passing through a flanged coupling- 8, The

coupling 8 may be made of cast iron or other suitable material andis' provided with a cen-c tral threaded aperture 9 for the reception of the upper threaded end 'of the supporting pipe 1 0. The spider 2 is heldoutofzcontact with the coupling by meansof an insulating disc 11 (see Figure 4) and on the underside a plurality of small insulating washers .12 are provided for the bolts 6, preferably a metal washer 13 being used in conjunction with each of the bolts, as shown in Figure 4.

These bolts 6 are adapted to receive the upper ends of the guy wires l l'and to thus electrically connect the guy wires with the antenna, so that the guy wires form a portion of the antenna. The lower ends of the uy wires are securecl'to' an insulating mem er 7 15 which, in turn, is connected to theattached portions 166i such'guy wires. In this way, the lower ends of the guy wires are insulated while the upper ends are electrically connected to the cone.

It Will be seen that by this construction a trically distinct from the cone.

It will be seen that a novel form of antenna has been provided which is non-directional, which is so constructed that it completely houses the insulated support and protects such support from short circuiting or grounding the cone under all weather condibe seen that the cone acts as a housing for the upper end of the support and the insulating Washer or disc.

From reference to Figure 4:, it will be seen so tions. From reference to Figure 2, it will that the disell extends across the upper open end of the threaded aperture 9 of the coupling 8 and, consequently, prevents contact of the upper end of the supporting pipe with any metal portion of the antenna system, although the metal pipe may be threaded a considerable distance at its end. i

It will be seen furtherthat the antenna is of very simple and substantial construction, and may be cheaply produced. s

Although the invention has been describe in considerable detail, such description is intended as illustrative rather than limiting the invention maybe variously embodied and as the scope of such invention is to be determined as claimed. V

I claim:

1. An antenna for radio Work comprising insulated coupling located on its underside,

a metal support secured to said couplin and a plurality of bolts attaching said memlier. to said coupling and adapted to receive guy wires, said bolts being electrically connected to said member andcinsulated from said couphng.

2. An antenna for radio work comprising an extensive sheet metal member having an insulated coupling located on its underside, a metal support secured to said coupling, and a plurality of bolts attaching said member to said coupling and adapted to receive guy Wires, said bolts being electrically connected to said member and insulated from said coupling, a plurality of guy wires electrically and mechanically connected to said bolts, and insulating attaching members secured to the lower end of said guy Wires.

An antenna comprising a conical sheet metal member having an open lower end, a metal spider secured to said member and located within said member and spaced up- Wardly from the open lower end, an insulating plate located below said spider, a coupling having a threaded support-receiving aperture and located below said plate, a plurality of damping bolts passing through said coupling, plate and spider and insulated fromsaid coupling and electrically connected to said plate, said plate extending across the aperture in said couplin In testimony that I claim the foregoing I have hereunto set my hand atMerrill, in the county of Lincoln and State of lVisconsin.

LOUIS C. POI-RIER. 

